Note: NR, not recommended. Numerical values for AEGL-1 are not recommended (1) because of the lack of available data, (2) because an inadequate margin of safety exists between the derived AEGL-1 and the AEGL-2, or (3) the derived AEGL-1 is greater than the AEGL-2. Absence of an AEGL-1 does not imply that exposure below the AEGL-2 is without adverse effects.


Haun, C.C., J.D. MacEwen, E.H. Vernot, and G.F. Egan. 1970. Acute inhalation toxicity of monomethylhydrazine vapor. Am. Ind. Hyg. Assoc. J. 31(6):667-677.

MacEwen, J.D., J. Theodore, and E.H. Vernot. 1970. Human exposure to EEL concentrations of monomethylhydrazine. Pp. 355-363 in Proceedings of the 1st Annual Conference Environmental Toxicology, September 9-11, 1970, Wright-Patterson Air Force Base, OH. AMRL-TR-70-102, Paper No 23. Aerospace Medical Research Laboratory, Wright-Patterson Air Force Base, OH.

NRC (National Research Council). 2000. Acute Exposure Guideline Levels for Selected Airborne Chemicals, Vol. 1. Washington, DC: National Academy Press.

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